Fine you have your opinions and I have mine. I know what I'm saying though. My research involved actually using all of them.. Multitasking wasn't that good when compared to others.

And my lecturer who is a security specialist and tries to hack systems for testing says that Macs are not very secure, and that Apple didn't respond when he tried telling them with these vulnerabilities which gives him the right after 30 days to release it to the public.

Still if you find OS X to be good you should definately use it.